Scouring-machine for woven fabrics.



No. 757,148. PATENTED APR. 12, 1904.

' 'SGHWEITER. SGOURING MACHINE FOR WOVEN FABRICS.

APPLIUAI'ION FILED MAR. 6, 1902.

2 SHEETS-8231131. 1.

N0 MODEL.

Jzk o o J 1 ll No. 757,148. I PATBNTED APR. 12, 1 904.

' J. SGHWBITER.

SGOURING MACHINE FOR WOVEN FABRICS. APPLICATION FILED MAR. 5'. 1902.

O 0 "I O UNITE STATES :Patented April 12, 1 904.

PATENT OFFICE.

SCOURING-MACHINE FOR WOVEN FABRICS.

SPECIFICATION forming part of Letters Patent No. 757,148, dated April12, 1904. Application filed March 5, 1902. Serial No. 96,868. (Nomodel.)

To all whom it may concern.-

Beitknown that I, JEAN SOHWEITER, manufacturer, a citizen of the SwissConfederation, residing at Horgen, Switzerland, have invented certainnew and useful Improvements in scouring-Machines for Woven Fabrics, ofwhich the following is a specification.

The present invention relates to a scouringmachine for woven fabrics,the essential feature of which is that the scouring-knives are alltogether or by rows pressed by an elastic pressing medium against thetextile fabric, the intensity of the pressure being liable to beregulated by alterations of the tension in the pressing medium.

In the drawings, which by way of example represent one form in which theinvention can be carried out, Figure 1 shows a vertical section throughthe scouring-machine; Fig. 2, a vertical longitudinal section throughthe same on the line II II, uncovered on various places and in which allparts not necessary for the understanding of the invention have beenomitted. Fig. 3 shows. a vertical longitudinal section through a singlescouring device, the middle part of which is imagined as left out. Fig.4 shows a vertical longitudinal section through the same on the line IVIV of Fig. 3 and seen from the left side; Fig. 5, ahorizontallongitudinal section on the line V V of Fig. 3; and Fig. 6 shows aspecial design of the elastic cushions.

As per Fig. 1, the stuff-beam 8, from which the textile fabric 9 to betreated is rolled off, is journaled in the bearings 6 of themachineframe 7. From the stuff-beam 8 the fabric runs over aguide-roller 11, rotatively journaled in the bearing-arms 10, screwed tothe machine-frame. Thence the fabric passes'be tween a guide formed bythe rails 12, 13, 14, and and the knives 16, 17, 18, and 19, arranged inconsecutive rows, to the front guideroller 20, rotatively journaled inthe bearingarms 21, screwed to the machine-frame. From this guide-rollerthe fabric 9 is guided downward to the Winding device, which consists ofthe rollers 22, 23, 24, and 25, and may be of any suitable construction.The rollers 22 and 23 are spreading-rollers. They are journaled at bothends in a lever 26, pivoted at 27 in the machine-frame and weighed by acounterpoise 28 in such a manner that the roller 23 is pressed frombeneath against the winding-beam 24. By a suitable device the latterreceives a continuous or an intermittent rotatory movement. The rolleris journaled in slotted bearings 29 of the machineframe and rests on thewinding-up beam 24 or on the wound-up fabric.

As will especially be seen by Figs. 3 and 4, the knives 16, 17, 18, and19 are each fastened to a carrier 30. The carriers 30 of each row ofknives or of two or more rows of knives are pivoted at 32 to a commonplate or the knife-carrier 31 and linked by rods 33 with bow-shapedsliders or shoes 34. These shoes 34 are fixed to levers 35, adapted torotate round the trunnions 36, which latter are secured beneath theplate 31. The shoes 34 rest on one or more hose 37, which latter arepreferably located in a box 38, the cover of which may be formed by theaforesaid plate 31. The ends of the hose are closed by stoppers, the endstopper 39 being fixed by means of a screw 40 to the front wall 41 ofthe box 38, whereas the other stopper, 42, is hollow and passes throughthe wall 43 of the box 38. In the hithertodescribed design the channelsin the stoppers 42 belonging each to two hose 37 communicate with eachother through a cross-channel 44, Figs. 3 and 5, and the two outer onesof the hose located in one box communicate with each other through apiping 45, connected to a main pipe 46. Through this piping and by meansof a convenient pressing device air or water under pressure is fed tothe hose. For such purpose the piping 46 can be connected by flexibletubing to a compressed-air piping existing in the workshop; but thecompressed air may as well be produced by the machine itself, as it isdesigned to be the case in Figs. 1 and 2. A pneumatic pump 47, driven bythe machine by means of shafting and a crank, presses the air direct orby insertion of an air-pressure tank 48 through the flexible tubes orhose 49 in the aforesaid piping 46 of the scouring device. By cocksinserted into the tubes the admission of the air can be stopped in duetime as soon as the air-pressure has reached the required amount. Thedistended hose 37 thus form elastic cushions which determine with theaid of the aforedescribed IOO intermediate organs the amount of pressureI at which the knives 16, 17, 18, and 19 act upon the textile fabric 9passing over them.

The knives 16, 17 18, and 19 receive a reciprocating movementperpendicular to the direction in which the fabric moves. For suchpurpose the boxes 38 intended for holding the entire scouring device areprovided at their bottom part with guide-rods 50, Figs. 1 and 2, whichslide on the cross-bars 51 in the machine-frame. Upon each box 38 acts acrank-rod 53, driven by a crank 52. I In two scouring devices or morearranged in series the cranks 52 are placed on the shaft 54 at onehundred and eighty degrees for the purpose of giving the scouringdevices two movementsopposed to each other. The knives of one scouringdevice are then placed, as may be seen from Fig. 2, in opposition to theknives of the other scouring device, thus allowing the knives of thefirst device to scour the fabric from the center to one side and thoseof the second device to treat it from the center to the other side. Theshaft 54 receives its rotary movement from the main shaft 56 of themachine. As per Fig. 1, the main shaft 56 drives with the aid of beveledgear 57 an intermediate shaft 58. A spur-gear 59 on this shaft engageswith a spur-gear 60 on the shaft 54. On the end of the intermediateshaft 58 a crank 61 is located, which drives the pneumatic pump 47 Fromthe main shaft 56 a shaft 65 is driven by means of the chain-wheel 62,the chain 63, and the chainwheel 64. On the said shaft 56 the groovecams66 are located, which lift and lower sliding bars 67 vertically guidedin the machineframe. These bars are screwed to the frame 68, whichcarries the guide-rails 12, 13, 14, and 15 for the woven fabric. Therails 12, 13, .14, and 15 have thus a raising-and-lowering movementwhich has a determined ratio to the reciprocating movement of the knives16, 17, 18, and 19.

In the selected design it is, as already mentioned, supposed that theknives 16, 17, 18, and 19 are under pneumatic pressure, and at thebeginning of the work the hose 37 are blown out to a definite degree. Ifnow the machine is started, the aforedescribedmovements of the singledevices will take place. The scouring devices move in two directionsopposite to each other and are at certain times brought into contactwith the fabric. At the time when the two scouring devices areappreaching each other the guides 12, 13, 14, and 15 for the fabric havereached their lowest position and remain in same, in consequence of theshape of the groove-cams, as long as the scouring devices are movingforward. The knives 16, 17, 18, and 19 will then pass across the fabricbrought into contact with them, and the pressure at which the knives arepressed against the fabric is perfectly steady. Every single knife,however,

can come to close contact with the fabric independently of all others.At the moment Where the scouring devices reach the end of their strokethe fabric-guides 12, 13, 14, and 15 are lifted again to prevent theknives 16, 17, 18, and 19 from touching the fabric on their way back.

As a matter of course the pressure of the compressed air within the hosecan be altered at. pleasure, whereby the force with which the knives arepressed against the fabric can be modified according to Want.

Instead of compressed air any other com-- pressed gas or fluid may, ofcourse, be filled into the hose 37 to serve as apressure-medium, It islikewise quite indifferent Whether the hose 37 designed for storing upthe medium of pressure, be substituted by elastic cushions of anydesired shape. Fig. 6, for instance, shows the section of another verysuitable shape of a cushion. The bottom part 69 may be a metal or Woodenbox, which is covered at the top by a casing 70, flexible under air,gas, or fluid-pressure.

What I claim, and as my invention desire to secure by Letters Patent ofthe United States, 1s

1. In a scouring-machine for Woven fabrics,

the combination with an elastic cushion adapted to be distended byfluid-pressure, of transversely-reciprocating knives constructed to besteadily pressed against the fabric by said cushion. 2. Inascouring-machine for woven fabrics, the combination with theknife-carrier and knives pivotally arranged on a knife-carrier, of apressing-cushion adapted to act elastically through the introduction ofa fluid-pressure medium, shoes supported on the cushions, and linkedconnections between the shoes and the knives, substantially asdescribed.

3. In a scouring-machine for woven fabrics, the combination with aplurality of scouring devices comprising knives arranged in consecutiverows, and elastic cushions, the number of which corresponds to thenumber of knife-rows, which cushions are adapted to hold a fluidpressure medium and against which the corresponding knife-rows bear, ofmeans for moving adjacent scouring devices in opposite directions, andvertically-movable fabric-guides bringing the knives into contact withthe fabric only in one direction of movement, as and for the purpose setforth.

4. The combination with the transverselymoving knives, of fabric-guidesmovable to bring the fabric into contact with the knives only in onedirection of movement of said knives.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

JEAN SGHWEITER.

Witnesses:

A. LEIBERKNECHT, Z. AEBERLY.

